Home / 20,227,321.90-30,340,982.85-13,424,877.10

Finding the Fourth Proportional to 20,227,321.90, 30,340,982.85 and 13,424,877.10

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Solution

The fourth proportional to 20,227,321.90, 30,340,982.85 and 13,424,877.10 is: 20,137,315.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227,321.90 : 30,340,982.85 = 13,424,877.10 : x
  2. Step 2: Convert to fraction form
    20,227,321.90/30,340,982.85 = 13,424,877.10/x
  3. Step 3: Cross multiply
    20,227,321.90x = 30,340,982.85 × 13,424,877.10
  4. Step 4: Simplify right side
    20,227,321.90x = 407,323,965,854,457.75
  5. Step 5: Solve for x
    x = 407,323,965,854,457.75/20,227,321.90
  6. Step 6: Final answer
    x = 20,137,315.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.